Wiktionary
nonallied
a. Not allied.
Usage examples of "nonallied".
The nonallied pods were of course a concern, but the crazed random firing of Breetai's troops was life-threatening!
And in a sense they were a nonallied counterforce, separated from the Human as well as the Invid cause.
We were deliberately misled and kept from knowing things that then allowed the transfer of weaponry from a nonallied space fleet to this planet, and activation of that weaponry by at least one such ship.